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Old 02-15-2004, 12:43 PM   #1
Registered: May 2003
Location: Belgium
Distribution: Gentoo, Debian
Posts: 44

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Does anyone have experience installing lvm in debian

I was wondering if anyone has installed lvm in debian.

I've already installed gentoo with lvm and put following on it:

I'm planning to install a new server with debian stable, but have few experience with the install.

Any tips?
Old 02-16-2004, 08:08 AM   #2
LQ Newbie
Registered: Feb 2004
Distribution: Fedora,redhat linux
Posts: 4

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Smile try install latest lvm

try idownloading latest lvm-2 version and follow instructons from site to install click here !
Old 02-16-2004, 12:13 PM   #3
Registered: May 2003
Location: Belgium
Distribution: Gentoo, Debian
Posts: 44

Original Poster
Rep: Reputation: 15
I'm going to try it next week.
To bad that debian doesn't has such good docs like gentoo.
With gentoo its just a subdoc to the install-guide.
If things don't work out the way they should, you'll be the first to hear.

The setup of the server won't be that special, just apache, mysql, cups and samba.
Now only to get used to apt-get again...
Old 02-16-2004, 04:30 PM   #4
LQ Newbie
Registered: Jun 2003
Location: Campbell, CA, US
Distribution: Debian
Posts: 2

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I have installed Debian testing/unstable on an LVM substrate using
my own procedure (documented on my MoinMoin/Wiki pages at:

Note: this method is for performing a fresh installation, manually,
using nothing but a net connection and an LNX-BBC (or any other rescue
disc or diskette with suitable fdisk, mkfs, mount, and wget commands).

To simply add LVM to an existing system and migrate some files to it
is potentially a little simpler. I should write that up as another Wiki
page. Basically:

* install the LVM package (in my case just lvm10 and the lvm-common
Debian packages),
* fdisk to mark your PV (physical volume partitions)
* run pvcreate /dev/hdXY or /dev/sdXY where X is the device and Y
is the partition

(or you can use whole disks with no PC compatible partition table
on them --- by running the pvcreate command on the whole disk node:
/dev/hdb or whatever. Of course you can also run LVM over the
soft RAID metadisk (md) drivers --- setting up your RAID volumes
using mdadm or the old /etc/raidtab and suite --- then run pvcreate
on the /dev/md* device(s))

* run vgscan (to create/updage an /dev/lvmtab file)
* run vgchange -a y (to activate the LVM subsystem)
* run vgcreate (to create your volume group)
* ls -l /dev/$VOLUME_GROUP_NAME (make sure it created its VG directory
and device nodes thereunder
* run your series of lvcreate commands (creates more device nodes under
the specified VG directory and wires up the metadata for the volumes,
use 'ls' to check)
* run mkfs (for any filesystem type you like) on each LV
* create your temporary mount points
* migrate your data (using cp -ax, rsync, cpio -p,
(tar cf - | tar xpvf -), dump | restore or your favorite method)
* update your /etc/fstab
* check to make sure /etc/init.d/lvm was created and will be running
the vgchange command upon boot (was done as part of the apt-get
install lvm10 in my case)
* reboot or simply umount and remount all of your newly migrated
filesystems manually (might have to bounce down into single user
mode and back up if you're migrating busy filesystems like /var).
* at your leisure reclaim your old partitions, mark them as type
8e (Linux LVM) in fdisk, run pvcreate on each of them and then
vgextend to add them to a volume group; you can then dole out
space therefrom as needed (using e2fsadm to enlarge existing
ext2/ext3 volume, or the underlying lvextend command and suitable
other utilities to grow other types of fileystems, or using the
lvcreate command to create new volumes, of course).

If you read the page I describe you'll see most of these same steps
interspersed into it. (The difference was that I was installing a
fresh copy of Debian for other reasons that were unrelated to the
use of LVM --- so I didn't have to migrate filesystems through the

Note that this assumes that the rootfs and /boot (assuming you follow
the Linux traditions of keeping /boot separate) are on non-LVM volumes.
If you want your rootfs on LVM --- which I don't recommend --- then you'd
have to create an initrd (for each new kernel you build) to contain and
run the vgscan and vgchange utilities.

I hope this helps.
Old 02-17-2004, 05:47 AM   #5
Registered: May 2003
Location: Belgium
Distribution: Gentoo, Debian
Posts: 44

Original Poster
Rep: Reputation: 15
Thanks for the reply. I'll try that next week.
This doc will certainly be a great help.
Nice doc btw, keep up the good work.

Debian is great for servers, but for desktops I prefer gentoo.


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